This is rather extreme. Almost seems more likely she gave her account to Waltz.
Waltz's self-demonstration humor is less rigid and more wiggly than this, isn't it? He's a go with the flow laid back snarker who doesn't apply much shrouding. She even did the "I'm going to put what I said in topic in chat so that someone notices me" thing that Psychopath Dave does, while I've never seen Waltz inclined towards that approach (although he might now).
Also, check her use of font sizes and her use of language, I don't think Waltz could fake those levels of crazy. Others with more experience in it maybe, but Waltz just shoots the shit. It takes experience to mimic psychosis in conjunction with mania.
I have nothing to do with this masterpiece. However, I am 100% solid this is not Med.
You haven't been speaking to her as of late. Still it's interesting hearing you say that. Personally I find her unpredictable and this looks like something she would write when motivated.